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公开(公告)号：US07218583B2
公开(公告)日：2007-05-15
申请号：US10866419
申请日：2004-06-10
IPC分类号： G11B15/52
CPC分类号： G11B7/24082 , G11B7/0904 , G11B7/0912 , G11B7/094
摘要： The present invention relates to a method for recovering land pre-pits from a signal obtained from an optical recording medium. According to the invention, the method comprises the steps of: providing a phase locked loop for the land pre-pit signal for the accurate measurement of the phase of the land pre-pits, and generating a corrected wobble signal for rejecting wobble beats.
摘要翻译： 本发明涉及一种从光记录媒体获得的信号中恢复土地预制坑的方法。 根据本发明，该方法包括以下步骤：为陆地预制凹坑信号提供一个锁相环，用于准确测量陆地预制凹坑的相位，并产生一个校正的摆动信号，以排除摆动节拍。
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公开(公告)号：US07529162B2
公开(公告)日：2009-05-05
申请号：US10853679
申请日：2004-05-25
申请人： Pierluigi Lo Muzio , Marco Georgi
发明人： Pierluigi Lo Muzio , Marco Georgi
IPC分类号： G11B7/00
CPC分类号： G11B27/19 , G11B27/24 , G11B27/3027
摘要： The present invention relates to a method for the demodulation of the ADIP data of a wobble signal of an optical recording medium, whereby the wobble signal is modulated using two different methods, and to an apparatus for reading from and/or writing to optical recording media using such method.According to the invention, the method comprises the steps of recovering the carrier of the wobble signal, demodulating the wobble signal based on the recovered carrier, and providing a two-dimensional MSK filter for detecting MSK marks in the wobble signal.
摘要翻译： 本发明涉及一种用于解调光学记录介质的摆动信号的ADIP数据的方法，由此使用两种不同的方法调制摆动信号，以及用于从光学记录介质读取和/或写入光学记录介质的设备 使用这种方法。 根据本发明，该方法包括以下步骤：恢复摆动信号的载波，基于恢复的载波解调摆动信号，并提供用于检测摆动信号中的MSK标记的二维MSK滤波器。
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公开(公告)号：US07436740B2
公开(公告)日：2008-10-14
申请号：US10975787
申请日：2004-10-28
IPC分类号： G11B5/09
CPC分类号： G11B19/125
摘要： The present invention relates to a method and a device for detecting the type of wobble on an optical recording medium. According to the invention, a programmable digitally tuned oscillator is provided for detecting the wobble at different frequencies and the wobble signal is converted to the base band. Favorably the consistency of the phase of the wobble together with the amplitude of the wobble is used for verifying the presence of the wobble. For this purpose a Cartesian to Polar converter is provided.
摘要翻译： 本发明涉及一种用于检测光学记录介质上摆动类型的方法和装置。 根据本发明，提供了一种可编程数字调谐振荡器，用于检测不同频率的摆动，并将摆动信号转换为基带。 有利地，摆动相位的一致性与摆动的幅度一起用于验证摆动的存在。 为此，提供了笛卡尔到极地转换器。
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公开(公告)号：US20070109929A1
公开(公告)日：2007-05-17
申请号：US10577266
申请日：2004-10-16
IPC分类号： G11B7/00
CPC分类号： G11B7/0906
摘要： The present invention relates to a full-digital implementation of a differential phase detector and to an interpolator for such a differential phase detector. According to the invention a differential phase detector for generating a tracking error signal from the digitized signals (A, B, C, D) of four photodetectors, having a multiplexer for time multiplexing the digitized signals (A, B, C, D), includes a demultiplexer/interpolator for synchronizing the samples from the time multiplexed digitized signals (A, B, C, D). The demultiplexer/interpolator favorably receives a four signal time multiplex and generates four channels at half the speed of the time multiplex.
摘要翻译： 本发明涉及差分相位检测器和这种差分相位检测器的内插器的全数字实现。 根据本发明，一种用于从四个光电检测器的数字化信号（A，B，C，D）产生跟踪误差信号的差分相位检测器，具有用于对数字化信号（A，B，C，D）进行时分复用的多路复用器， 包括用于使来自时间复用数字化信号（A，B，C，D）的样本同步的解复用器/内插器。 解复用器/内插器有利地接收四信号时间复用，并以时间复用的一半速度生成四个信道。
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公开(公告)号：US20050094520A1
公开(公告)日：2005-05-05
申请号：US10975787
申请日：2004-10-28
CPC分类号： G11B19/125
摘要： The present invention relates to a method and a device for detecting the type of wobble on an optical recording medium. According to the invention, a programmable digitally tuned oscillator is provided for detecting the wobble at different frequencies and the wobble signal is converted to the base band. Favorably the consistency of the phase of the wobble together with the amplitude of the wobble is used for verifying the presence of the wobble. For this purpose a Cartesian to Polar converter is provided.
摘要翻译： 本发明涉及一种用于检测光学记录介质上摆动类型的方法和装置。 根据本发明，提供了一种可编程数字调谐振荡器，用于检测不同频率的摆动，并将摆动信号转换为基带。 有利地，摆动相位的一致性与摆动的幅度一起用于验证摆动的存在。 为此，提供了笛卡尔到极地转换器。
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公开(公告)号：US06208760B1
公开(公告)日：2001-03-27
申请号：US08863704
申请日：1997-05-27
IPC分类号： G06K936
CPC分类号： H04N7/014 , H04N5/4401 , H04N19/40 , H04N19/51 , H04N19/523 , H04N19/56
摘要： In a method of furnishing output motion vectors (MV′), motion vectors (MV) are retrieved (DEC) from an encoded image signal (MPEG), and the retrieved motion vectors (MV) are post-processed to obtain the output motion vectors (MV′). The post-processing includes generating (CVG) candidate motion vectors, and selecting (CVS) the output motion vectors (MV′) in dependence upon the candidate motion vectors and the retrieved motion vectors (MV).
摘要翻译： 在提供输出运动矢量（MV'）的方法中，从编码图像信号（MPEG）检索运动矢量（MV）（DEC），并且对所检索的运动矢量（MV）进行后处理以获得输出运动矢量 （MV'）。 后处理包括生成（CVG）候选运动矢量，并根据候选运动矢量和检索的运动矢量（MV）来选择（CVS）输出运动矢量（MV'）。
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公开(公告)号：US20060179095A1
公开(公告)日：2006-08-10
申请号：US11325805
申请日：2006-01-05
IPC分类号： G06F17/10
CPC分类号： H03H17/0628 , H03H17/0275 , H03H17/028
摘要： The invention relates to an asynchronous sample rate converter (ASRC) for the conversion of the sample rate of digital data such as audio data or video data. In the case of high over-sampling or sub-sampling factors an ASRC becomes quite complex. It is an object of the invention to provide an ASRC with a simplified design for such purposes. It is suggested to use an ASRC which has a n-tap polyphase filter, whereby a computational entity performs a polynomial computation of the filter coefficients. The attenuation at the notch frequencies is best when using a Parzen window or a quadratic window.
摘要翻译： 本发明涉及用于转换诸如音频数据或视频数据的数字数据的采样率的异步采样率转换器（ASRC）。 在高采样或次采样因素的情况下，ASRC变得相当复杂。 本发明的目的在于为ASRC提供简化的设计用于此目的。 建议使用具有n抽头多相滤波器的ASRC，由此计算实体执行滤波器系数的多项式计算。 当使用Parzen窗口或二次窗口时，陷波频率处的衰减最好。
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